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Çѱ¹¼öÀÚ¿øÇÐȸ / v.23, no.4, 1990³â, pp.435-444
¸¸°î¼ö·Î¿¡¼­ÀÇ °î·ü¹Ý°æ º¯È­¿¡ µû¸¥ È帧Ư¼º
( Flow Characteristics for the Variation of Radius of Curvature in Open Channel Bends )
À±¼¼ÀÇ;ÀÌÁ¾ÅÂ; °æ±â´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú ºÎ±³¼ö(Á¤È¸¿ø);°æ±â´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú ºÎ±³¼ö(Á¤È¸¿ø);
 
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¸¸°î¼ö·Î¿¡¼­ÀÇ °î·ü¹Ý°æ¿¡ ´ëÇÑ ÇÏÆøºñ º¯È­¿¡ µû¸¥ È帧Ư¼ºÀ» ´Ü¼øÈ­µÈ ¼öÄ¡¸ðÇüÀ» ÀÌ¿ëÇÏ¿© ºÐ¼®ÇÏ¿´´Ù. °¢ ¿îµ¿·® ¹æÁ¤½Ä°ú ÈûÀÇ ÆòÇü¿ø¸®·ÎºÎÅÍ °¢°¡ 2Â÷ È帧¼Óµµ¿Í Ⱦ¹æÇâÇÏ»ó°æ»ç¸¦ °è»êÇÏ¿´´Ù. ±íÀÌ ¹æÇâÀ¸·Î ÀûºÐµÈ ¿¬¼Ó¹æÁ¤½Ä°ú È帧¹æÇâÀÇ ¿îµ¿¹æÁ¤½ÄÀ» ¾çÀû À¯ÇÑÂ÷ºÐ¹ýÀ¸·ÎºÎÅÍ ±× ÇØ¸¦ ±¸ÇÏ¿´´Ù. °î·ü¹Ý°æ¿¡ ´ëÇÑ ÇÏÆøÀÇ ºñ¸¦(Rc/B) 2.7, 5.4 ¹× 8.1·Î º¯È­½ÃŰ¸é ¼öÄ¡½ÇÇèÀ» ½ÇÇàÇÏ¿©, ±× °á°ú·ÎºÎÅÍ 2Â÷ È帧¼Óµµ, È帧¹æÇâÀ¯¼Ó, ÃÖ´ëÀ¯¼ÓÀÇ À̵¿°æ·Î, ÆíÀǰ¢ ¹× Áú·®À̵¿À¯¼Ó¿¡ °üÇÑ Æ¯¼ºÀ» ºÐ¼®ÇÏ¿´´Ù.
The flow characteristics varying with the rate of the radius of curvature to width (Rc/B) in open channel bends are investigated with a simplified numerical model, briefly. Secondary flow velocity and transverse bed slope are formulated from the equations of moment of momentum and force balance analysis, respectively. The conservation equations of mass and streamwise momentum are simplified by depth integration and its solution could be obtained form explicit finite difference method. Three sets of computer simulation are executed. The rates of Rc/B adopted in simulations are 2.7, 5.4, 8.1 , respectively. The terms analyzed in this paper are secondary flow velocity, streamwise velocity, the path of maximum streamwise velocity, deviation angle, and mass-shift velocity.
 
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Çѱ¹¼öÀÚ¿øÇÐȸÁö / v.23, no.4, 1990³â, pp.435-444
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1738-9488
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199011920093331)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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